A calendar year runs January 1 to December 31; a fiscal year is any 12-month accounting period that ends on the last day of any month other than December — businesses may elect a fiscal year to align reporting with their natural business cycle.
Most small businesses use the calendar year (January 1 – December 31) as their tax and reporting year by default. A fiscal year is an alternative 12-month period ending on the last day of any month other than December — for example, April 30 fiscal year-end is common in retail, and September 30 is used by many federal contractors and universities. For sole proprietors and single-member LLCs (disregarded entities), the tax year must match the owner's personal tax year — which is calendar year for most individuals. S-corps and C-corps have more flexibility; a C-corp can elect a fiscal year, though S-corps generally must use calendar year unless there's a business purpose for a different period (IRS Form 8716 required). Lenders care about fiscal year because financial statements and tax returns cover different reporting windows for different businesses. A business with an October 31 fiscal year-end files its tax return by February 15 (with extension: August 15) — not April 15. When reviewing applications mid-year, lenders may request interim financials (YTD profit and loss, balance sheet) to bridge between the last filed return and the application date. Seasonal businesses (landscaping, retail holiday, tourism) often benefit from fiscal years that end shortly after peak season — when cash balances are highest and receivables are lowest.
Yes — the vast majority of sole proprietors, partnerships, and S-corps use the calendar year. C-corps have the most flexibility. For simplicity and compatibility with personal tax filing, calendar year is the default choice for most small businesses.
Yes, but IRS approval is required via Form 1128 (automatic method) or through a private letter ruling. There must be a valid business purpose. Changing fiscal year affects when tax returns are due and can create a short-year return. Consult a CPA before making the change.
Lenders want the most recent full-year financial picture. If your fiscal year-end was October 31 and it's now March, your most recent fiscal year data is 5 months old — the lender will typically also request year-to-date financials. Calendar-year businesses filing in April have fresher data available.